557780061 has 8 divisors (see below), whose sum is σ = 776041920. Its totient is φ = 355685792.

The previous prime is 557780051. The next prime is 557780099. The reversal of 557780061 is 160087755.

557780061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557780061 - 2⁹ = 557779549 is a prime.

It is a super-2 number, since 2×557780061² = 622237192898327442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557780021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4041816 + ... + 4041953.

It is an arithmetic number, because the mean of its divisors is an integer number (97005240).

Almost surely, 2^557780061 is an apocalyptic number.

It is an amenable number.

557780061 is a deficient number, since it is larger than the sum of its proper divisors (218261859).

557780061 is a wasteful number, since it uses less digits than its factorization.

557780061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083795.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 557780061 is about 23617.3677830532. The cubic root of 557780061 is about 823.1664506661.

The spelling of 557780061 in words is "five hundred fifty-seven million, seven hundred eighty thousand, sixty-one".